Used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries. The professional stereo zoom microscope has a pair of 10X super-widefield high-eyepoint eyepieces, a zoom objective, a 0.5X Barlow lens, and a single-arm boom stand, pillar stand. The microscope has an overall magnification range of 7X-50X. The trinocular viewing head has an interpupillary range of 55 to 75mm, a 45-degree inclination to reduce eye and neck strain, and 360-degree rotation to enable sharing. The WH10x20mm super-widefield high-eyepoint eyepieces combine with the zoom objective to provide continuous zoom magnification and a longer working distance for inspecting large-scale specimens that require handling or repair. Magnification range: 7X-50X Zoom Objective Power: 0.7X-50X Eyepieces (DIN, 30mm): WH10x20mm high-eyepoint Zoom Range: 13:1 Field of View: 2-1/2" Optical working distance: Up to 8" Microscope Stand: Single-arm boom stand==>Pillar stand Head Movement: X- and Y-axes Illumination Type: Episcopic (reflected) Package Content* 1x Trinocular Stereo Microscope RF4 RF7050TVP (2024 Edition) 1x A pair of WF10X/22MM eyepiece 1x One Pair of rubber eye guard ( Round ) 1x One dust cover Plastic 1x Dust Protection Glass 1x One Big Microscope Base 1x 0.5X CTV Zooming Camera Lens 1x LED Light With Adjustable Controller